The British Parliament passed a law granting independence in July 1947. The law gave people only one month to decide which country they wanted to live in and to move there. As millions of people began to move, more violence broke out.
Calderas form when an enormous magma chamber under, what was probably a pretty ginormous volcano, empties and collapses, causing the land above it to collapse as well. An explosive caldera-forming eruption has never been witnessed first hand, but we know that they should pretty fearsome spectacles. Much smaller calderas atop effusive volcanoes (hawaiian style) have been observed. So, formation: maars form when a vent intersects groundwater and blasts out the overlying material.
volcanoes that will never erupt again are considered extinct dormant volcanoes have not erupted in historic time the last 200 years in hawai i but probably will erupt again active volcanoes have erupted in historical time the last 200 years in hawai i kohala the oldest volcano on this island last erupted about 60000 years ago and is considered extinct mauna kea last erupted 3600 years ago and is dormant hualalai mauna loa and kilauea are active